Brake-rigging device



' Sept. 23, 1930. E. E. HEWITT 1,776,251

BRAKE RIGGING DEV IC Filed April 16, 1928 INVENTOR l ELLIS E.HEWITTATTORNEY Patented Sept. 23, 1930 UNITED STATES,

PATENT foFF-ICE ELLIS E. HEWITT, OF EDGEVIOOD, PENNSYLVANIA, ASSIGrNORT0 THE W'ES'lINGI-IO'USEv AIR BRAKE COMPANY, OF `I??]LlEB)]INGr,PENNSYLVANIA, ACCORPORATION 0F PENNSYLVANIA ApplicationA led April `16,

This invention relates to `railway carV brakes and more particularly tothose prtions of the brakes which are carried b the car trucks and hasfor its principal ooject to provide means for holding the radius bar ofthe brake against excessive sidewise movement relative to the car truckframe.

In the accompanying drawing; Fig. 1 is a plan view of a portion or" arailway car truck and brake embodying my invention; and Fig. 2 is an endelevational view of the same.

The truck may be of any desired construction, but for illustrativepurposes, has been shown in the drawing as comprising spacedlongitudinally extending side frames 1 and transversely extending endtrame l members 2, only one ot which latter members are shown. This endframe member 2 is connected to the ends of the side frames by brackets 30r any other desired means. The truck frame as a whole is carried, inthe usual manner by the axles having the car wheels l mounted thereon.

The truck brake may be of any desired construction but as shown in thedrawing comprises two sets of connected levers and rods, there being oneset at each side of the truck. Each set of levers may comprise avertically disposed brake lever 5 having mounted thereon a brake shoe 6adapted to engage one side of one of the wheels 4, anda verticallydisposed brake lever 7 having mounted thereon a brake shoe 8 adapted toengage the opposite side of the same wheel. The lever 5 adj acentv itsupper end may be ulcrumed to one of the brackets 3 and the lever 7 maybe fulcrumed intermediate its ends to one of the side frames in anydesired manner. The lower ends of these leversv are operativelyconnected by longitudinally extending rods 9. The upper end of the lever7 is operatively connected to one end of a horizontally disposedequalizing lever 10 by connected clevises 11. The other end or the lever10 is connected to a brake rod 12 which extends rearwardly and brakelevers and rods of the truck, a curved :BRAKE-mesme DEVICE 'i V119,28, jsieriaiinof 2,710,292.

horizontally,dispcsed radiusfbar 14 is provided, with whicha roller 15von the pull rod 13 engages."

The radius b arl`1l is movable back and forth, in directionslongitudinally of the truck in4 operating `the brakesand is slidablysupportednpon brackets 16isecure'd toene of the end frame members 2.-

ln ythe presentv embodiment of the `inven tion, each end of the radiusbar is connected .to one of the equalizing levers 10, intermediateitsendaby a rd`17. j j

For the purpose of preventing undue sidewise movemento-ftheradius bar,relative to the truck trame, a connection from the radius bar to thetruck frame is provided,

which connect-ion'is in the form of a rod 18,

the outer end of which is operatively connected to the-radius baradjacent its outer end, the inner end being pivotally connected with abracket 19 secured to the end frame member 2. The bracket 19 ispreferably arranged adjacent the longitudinal center line of the truck,but it will be understood that it may be placed at any other desiredlocation.

However, the further thebracket' is placed away from the outer end ofthe rod 18, the less will be the radial movement imparted to the radiusbar when the brakes are oper- Y ated.

While one illustrative, embodiment of the invention has been describedin detail, it is not my intention to limit its scope to that embodimentor otherwise than by the terms of the appended claims.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. In a brake rigging, the combination with a car truck frame, of aradius bar operatively carried by said truck frame, and a connectionbetween said radius bar and truck frame adapted to maintain said baragainst undue movement transversely of the truck, said connectionextending longitudinally of said bar.

2. In a brake rigging, the combination with a car truck, of a pluralityof connected brake levers and rods carried by said truck, a radius barfor transmitting braking forces to said levers and rods, and aconnection from said bar to said truck, said connection extending.transversely of the truck.

3. In a brake rigging, the Combination with a car truck, of a pluralityofoonnected brake levers. and rods carried bysaid truek, a radius barfor transmitting braking forces to said levers and rods, and meansextending transversely of the truck and operatively connecting saidfbarto said truck, said means being adaptedto maintain said bar againstexcessive movement transversely ofthe truck. f

4. In a brake rigging, the combination with a ear truck, of a radius barforming part of said brake rigging and' slidablyl mounted on said truck,and a connection vfrom said bar to a fixed portion of said truck forV'maintaining said bar Vagainst movement transversely of the truck. p

5. In a brake rigging, the combination with a oar truck, of a radius bar'forming part ot said brake rigging, and a bar extending in a directiontransversely of the truck having one end pivotally `connected With the Itruck and the other end pivotallyV connected to one of the end portionsof said ban In testimony whereof kI haye `hereunto `set my hand. A Y

ELLIS E. HEWIT

